the recent table refactoring replaced the compile-time-safe approach
to columns (i.e., table.getFooColumn()) by a generic method which
requires a magic cookie (i.e., table.getColumn("FOO")). Unfortunately,
this went belly-up with the viscosity column of the PVTO table (here
the magic constant is "MU" and not "MUO". Note that in this respect,
opm-parser is inconsistent w.r.t. the column of the formation volume
factor which is called "BO" and not "B".)
there were also some additional typos: the gas dissolution factor is
"RS" and the pressure of oil is "P".
It probably gets time to make the opm-core/opm-autodiff PVT code use
the stuff from opm-material so that this receives some run-time
testing with `flow` during development. (currently this is only used
by `ebos`...)